• The Journal of the Korea Contents Association
• /
• v.21 no.10
• /
• pp.163-171
• /
• 2021

Various records on health, food and treatment are written in ancient documents of Korea such as old recipe books, Korean medical books and history books, through these records, the principle of Sikchi can be discovered. Sikchi includes the meaning of medicine and food work on the same principle, and it is not only as traditional knowledge but also affecting modern food culture. Based on this principle of Sikchi, this study tried to lay a foundation that can be used as a modern health food material through scientific verification of foods recorded in the ancient literature. For this purpose, Omigalsu, a traditional drink made from omija, soybean, and honey, which is related to blood glucose control, which is one of the representative metabolic diseases of modern people, was selected as the subject of this study. In order to compensate for the agglomeration of beverages caused by honey or the rise in postprandial blood glucose, which occurs when the traditional Omigalsu recorded in the ancient literature is reproduced, the raw material that can be substituted for honey was discovered. The health promotion and quality improvement effects of newly prepared Omigalsu using honey substitutive raw material were confirmed through a comparative test with traditional Omigalsu. Based on this study, through scientific research using the principle of Sikchi, we intend to lay a foundation that can be used as various contents in the medical and food fields such as food bio and healthcare in modern society.

• Journal of the Korean Dietetic Association
• /
• v.2 no.2
• /
• pp.141-157
• /
• 1996

This study was carried out to obtain the information concerning food preferences of 588 men working at industry in Ulsan area. The subjects of this study were composed of 245 clerical workers and 343 physical workers. The results of this study can be summarized as follows: 1. Average age of this subjects was 36.1 years(ranging from 21 to 57), in the educational background, most of subjects were high school graduates. The mean height and weight were l71.6cm and 67.5kg. 2. In the preference of food 1) The preference for staple foods, well-milled cooked rice was preferred the most by the subjects. Kalkooksoo(hot noodle), cooked rice covered with raw fish pieces, bread with red bean were preferred the most by the workers. 2) The acceptance for side-dishes were high in sirak(woogyogi) soup, bach tang, soybean paste soup, broiled fish, wild plant namul, small radish kimchi and crab steaming products by clerial and physical workers all together. 3) The preferences for fruits and beverages were high in water-melon, pear, fruit juice and Korean traditional beverage.

• The Korean Journal of Community Living Science
• /
• v.23 no.3
• /
• pp.329-338
• /
• 2012

The purpose of this study was to explore consumers' perceptions and satisfaction of Makgeolli in Daejeon. The study examined the perceptions of consumers of a number of Makgeolli characteristics. A total of 199 respondents provided information regarding their perceptions of Makgeolli. Exploratory factor analysis showed that six factors of consumers' perceptions toward Makgeolli were: delight, harmony with food, atmosphere, health /tradition-related, self-fulfillment, and emotion. Examining the effect of each factor on Makgeolli satisfaction showed that delight had a negative relationship with satisfaction while harmony with food and health/tradition-related showed positive relationships. Atmosphere, self-fulfillment, and emotion did not impact satisfaction. Comparisons of the eleven attributes using t-test between Makgeolli and alcoholic beverages showed significant differences in six attributes: creating a special dining ambience(p<0.001), socializing(p<0.001), enhancing the taste of food(p<0.001), satisfying thirst(p<0.01), esthetic(p<0.01), and stylish(p<0.001). Most of the places where Makgeolli was consumed were traditional bars(53.4%) and Korean restaurants(29.1%). In order to make Makeolli as a global beverage further studies regarding Makgeolli purchasing motivation, satisfaction, consumer characteristics should be studied.

• Korean journal of food and cookery science
• /
• v.6 no.2
• /
• pp.77-84
• /
• 1990

This study was carried out to study the characteristics of 6 different Sikhaes and the activity of malt. The Sikhae, a kind of the traditional Korean beverages, is made from rice and malt. The result were summarized as follows. !. Though it takes longer when malt is manufactured at the 15$^{\circ}C$ than at the 25$^{\circ}C$, more excellent malt can be obtained at the 15$^{\circ}C$ because the activity of amylase is much higher. 2. The length of the whole malt is between 3 and 4 cm when the activity of amylase is highest. When sprout grows longer than this, the activity of anzyme falls low remarkably and the worth of malt is decreased. 3. Among the material grain to make Sikhae, the saccharifying of glutinous rice was best and the saccharifying of barleys was not so good. 4. The Sikhaes from rice and glutinous rice are not easily swollen, but the Sikhae from the barley is easily swollen and turbid. 5. The result by the sensory evaluation to determine the ranking is in the following order; Glutinous rice, Tongil glutinous rice, Nonglutinous rice, Tongil rice, Hulled barley, Naked barley.

• The Korean Journal of Food And Nutrition
• /
• v.26 no.4
• /
• pp.633-637
• /
• 2013

There is an increasing consumption of Makgeolli in both domestic and foreign markets due to a high interest in Korean traditional alcoholic beverages. However, currently, a standardized system of manufacturing, storing and circulating Makgeolli is not available. Therefore, manufacturing the constant quality of finished products is hardly achieved due to the uncertified quality index of Makqeolli. In particular, quality changes occur as a result of variable initial load of microorganisms during shelf life. Eight different commercially available brands of Makgeolli were obtained, and their initial concentrations of yeasts were measured. One brand with the highest concentration was chosen, and the variable initial concentrations were prepared at a concentration of $10^6{\sim}10^8$ yeast CFU/ml. These Makgeolli samples were heat-treated at 65, 70, 75 or $80^{\circ}C$. It was shown that temperatures higher than $75^{\circ}C$ were needed in order to pasteurize Makgeolli properly. In addition;it is considered that controlling the microorganisms by a standardized system for the processing analysis would improve the quality of Makgeolli.

• 한국균학회소식:학술대회논문집
• /
• 2014.10a
• /
• pp.23-23
• /
• 2014

There are many yeast strains have been discovered for industrial usage in global scale. In the point of view for the alcoholic fermentation performance and producing alcoholic beverage products, recently many countries have known about the importance of microorganisms as a valuable resource. Discovered with well performed yeasts have potential industrial application in diverse ways such as foods, beverages, cosmetics, pharmaceutical functions, and so on. In Korea, the yeast research has not been sufficiently performed especially for distilled spirits industry. As a result, not so little manufacturers use exotic yeasts from overseas even included the expensive royalties. Besides of those, to produce distilled spirits, many manufacturers do not use specialized yeast for distilled spirits. Distiller's characterized yeasts such as whisky, brandy, vodka, Japanese shochu and awamori, are all well-known industrialized. For decades, the distillers, except us, have selected, developed, and practised yeasts in accordance with distilled spirits characters. This study is about selection and industrial application of yeasts for the Korean pot distilled spirits. Finally 7 yeast strains were selected among over 1,000 yeasts from the traditional Nuruks, through the essential related tests based on brewing and distilling science. The selected yeasts show the appropriate characteristics of distilled spirits. The result of this study could help our distilled spirits industry be activated and stand independent from the exotic microbes.

• YAKHAK HOEJI
• /
• v.48 no.5
• /
• pp.266-271
• /
• 2004

Ginger (Zingiber officinale Roscoe) is widely used as a common condiment for a variety of foods and beverages. In addition to its extensive utilization as a spice, the fresh or the processed rhizome is a useful crude drug in traditional Chinese medicine. It is considered to possess stomachic, carminative, stimulant, diuretic and antiemetic properties. Chemical studies on the pungent principles of ginger have been carried out by a number of investigators, and 6-gingerol and 6-shogaol as a major pungent substance have been isolated. In this study, the constituents inhibiting a drug metabolizing enzyme CYP3A4 from ginger were investigated. CYP3A4 is responsible for drug metabolism as heme-containing monooxygenases. As a result of experiment, 10-gingerol (lC$_{50}$ 5.75$\mu$M) isolated from EtOAc extract of ginger showed remarkable inhibitory activity compared to 6-gingerol ($IC_{50}$/ 14.56 $\mu$M) and zingerone ($IC_{50}$/ 379.63 $\mu$M). This paper describes the isolation, structure elucidation, and CYP3A4 inhibitory activity of these compounds. The structure of the compounds were identified by instrumental analysis such as LC-mass spectrometer and NMR.R.

• Food Engineering Progress
• /
• v.22 no.4
• /
• pp.295-303
• /
• 2018

Polyphenol profiles, physicochemical properties, antioxidant activities, and inhibitory effect of adipocyte differentiation of Houttuynia cordata fermented with Lactobacillus brevis B84 were evaluated. Six polyphenols were characterized for this plant by using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS), and the results were compared with total phenolic content by a spectrophotometric method. The total amount of the identified polyphenols was lower than that determined by the spectrophotometric method. However, the fermentation process influenced polyphenol composition such as content of vanillic acid and caffeic acid. The phytochemical profiles were evaluated by high-performance liquid chromatography with UV and electrospray ionization mass spectrometry detection ($HPLC-DAD-ESI-MS^n$). Total sugar and reducing sugar contents decreased after fermentation. Antioxidant activities such as DPPH, ABTS, and superoxide anion radical scavenging and reducing power were evaluated to compare the beneficial effect after fermentation. Fermented H. cordata increased the lipolytic effect in 3T3-L1 adipocytes. Overall, the results indicate that the fermentation of H. cordata with L. brevis B84 produces changes of phenolic compounds, antioxidant activity, and lipolytic effect.

• Nutrition Research and Practice
• /
• v.10 no.5
• /
• pp.537-545
• /
• 2016

BACKGROUND/OBJECTIVES: Dietary sugar intake, particularly added sugar and sugar-sweetened beverages, has received worldwide attention recently. Investigation of dietary behaviors may facilitate understanding of dietary sugar intakes of children and adolescents. However, the relationship between dietary sugar intake and dietary behaviors in the Korean population has not been investigated. Thus, this study aimed to estimate dietary sugar intake and food sources according to sex as well as examine the relationship of dietary sugar intake with frequent snacking and dietary patterns among Korean children and adolescents. SUBJECTS/METHODS: We pooled data from five studies involving Korean children and adolescents conducted from 2002 to 2011. A total of 2,599 subjects aged 9-14 years were included in this study. Each subject completed more than 3 days of dietary records. RESULTS: Mean daily total sugar intake was 46.6 g for boys and 54.3 g for girls. Compared with boys, girls showed higher sugar intakes from fruits (7.5 g for boys and 8.8 g for girls; P = 0.0081) and processed foods (27.9 g for boys and 34.9 g for girls; P < 0.0001). On average, 95.4% of boys and 98.8% of girls consumed snacks during the study period, and total sugar intake showed a significantly increasing trend with increasing energy intake from snacks (P < 0.0001 for both sexes). Two dietary patterns were identified by cluster analysis: Traditional and Westernized patterns. Total sugar intake was higher in the Westernized pattern (56.2 g for boys and 57.2 g for girls) than in the Traditional pattern (46.5 g for boys and 46.3 g for girls). CONCLUSIONS: These results suggest that multilateral and practical development of a nutrition education and intervention program that considers dietary behaviors as well as absolute sugar intake is required to prevent excessive sugar intake in Korean children and adolescents.

• Journal of Microbiology and Biotechnology
• /
• v.32 no.3
• /
• pp.307-316
• /
• 2022

Yeasts play an important role in spontaneous fermentation of traditional alcoholic beverages. Our previous study revealed that a mixed-consortia of both Saccharomyces and non-Saccharomyces yeasts were responsible for fermentation of khadi, a popular, non-standardized traditional beverage with an immense potential for commercialization in Botswana. Functional characterization of isolated fermenting yeasts from mixed consortia is an indispensable step towards the selection of potential starter cultures for commercialization of khadi. In this study, we report the characterization of 13 khadi isolates for the presence of brewing-relevant phenotypes such as their fermentative capacity, ability to utilize a range of carbon sources and their ability to withstand brewing-associated stresses, as a principal step towards selection of starter cultures. Khadi isolates such as Saccharomyces cerevisiae, Saccharomycodes ludwigii and Candida ethanolica showed good brewing credentials but Lachancea fermentati emerged as the isolate with the best brewing attributes with a potential as a starter culture. However, we were then prompted to investigate the potential of L. fermentati to influence the fruity aromatic flavor, characteristic of khadi. The aroma components of 18 khadi samples were extracted using headspace solid phase micro-extraction (HS-SPME) and identified using a GC-MS. We detected esters as the majority of volatile compounds in khadi, typical of the aromatic signature of both khadi and L. fermentati associated fermentations. This work shows that L. fermentati has potential for commercial production of khadi.